Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: mtf on March 17, 2010, 02:15:00 PM

Title: exhaust compatability
Post by: mtf on March 17, 2010, 02:15:00 PM

hi does anybody know if a 1983 f2 4 into 2 exhaust will fit a 1980 k7 new here dont know if i am in right place

Title: Re: exhaust compatability
Post by: Bryanj on March 17, 2010, 02:21:02 PM

Those models were not made in those years

Title: Re: exhaust compatability
Post by: mtf on March 17, 2010, 03:07:25 PM

what model would i have it is a 1980 cb750k just wandered if the f2 exhaust would fit

Title: Re: exhaust compatability
Post by: mtf on March 17, 2010, 04:03:55 PM

what i am trying to find out is if any other exhausts will fit a 750k as i have just bought one but down pipes are rotten and need to find one cheap thanks

Title: Re: exhaust compatability
Post by: Bryanj on March 17, 2010, 05:09:00 PM

F2 wont fit and the 1980 is a twin cam that wont fit either, Depends on the year of your bike as frame mounting points moved

Title: Re: exhaust compatability
Post by: mtf on March 17, 2010, 07:46:47 PM

my bike is a cb750k sohc 1st registered 1980

Title: Re: exhaust compatability
Post by: mtf on March 17, 2010, 09:13:47 PM

engine and frame numbers 1977 but registered in the uk 1980 import maybe ?

Title: Re: exhaust compatability
Post by: Bryanj on March 18, 2010, 05:24:30 AM

Thats a K7 then and could have been "old" stock as they didn't sell well, I think the mountings on that one were unique so without much modding you will need a specific aftermarket system, Motad or somesuch but specify it as 77 or you will get the wrong one

Title: Re: exhaust compatability
Post by: mtf on March 18, 2010, 09:06:00 AM

thanks appreciate the help

Title: Re: exhaust compatability
Post by: Yoshi823 on March 18, 2010, 09:20:16 AM

I think that the two bikes in question may well be the CB750K7 & the CB750F2B. With the cylinder heads being completely differant I doubt if there is any compatibilty.

http://www.google.co.uk/search?client=firefox-a&rls=org.mozilla%3Aen-GB%3Aofficial&channel=s&hl=en&source=hp&q=Cb750K7&meta=&btnG=Google+Search

http://www.boldorclub.fr/techn/cb750f2b.html

But if you were lucky enough to find some CB750F2 4 into 1 downpipes these could be used with a custom made silencer. I had such a silencer made for me by John Campbell of Campbell Geometrics when they used to be in Dartford in Kent. John now works out of a workshop in a car MoT place in Chelsfield in Kent making stainless steel exhaust systems for bikes, cars & one-offs.

Title: Re: exhaust compatability
Post by: mtf on March 18, 2010, 02:37:58 PM

thanks great info exactly what i needed to know